When a meteor crashes nearby, Max and his friends Rex and Zoe rush off to check it out.

At the site, they find mysterious stones and even stranger cards. Once Max combines them, however, he gets a blast from the past as a real live dinosaur appears! But the kids'discovery isn't all fun and games. The cards belong to Dr. Z, and he wants them back. If he can collect them all he'll become the Dinosaur King and ruler of the world.